Solve the problem.The shadow cast by an object on a sunny day varies directly as the height of the object. If a person 56 inches tall casts a shadow 65 inches long, how tall is a tree which casts a shadow 44 feet in length?
A. 37.91 ft
B. 60.5 ft
C. 51.07 ft
D. 82.73 ft
Answer: A
Mathematics
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Determine the ratio and write it in lowest terms.18 miles to 9 miles
A. 
B. 
C. 
D. 
Mathematics
Write an equation to represent the problem.The difference of twice a number and 7 is 15.
A. 2x + 7 = 15 B. 2x - 7 = 15 C. 7 - 2x = 15 D. x - 2 ? 7 = 15
Mathematics
Evaluate as specified.For f(x) = 
x, find f(2).
A. -9
B. 
C. 
D. 
Mathematics
Solve using matrices.9x + 2y = -13x - 3z = -64y - 3z = 6
A. 
B. 
C. 
D. 
Mathematics